EP0969212A3 - Vorspann-Rückschlagventil - Google Patents

Vorspann-Rückschlagventil Download PDF

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Publication number
EP0969212A3
EP0969212A3 EP99110208A EP99110208A EP0969212A3 EP 0969212 A3 EP0969212 A3 EP 0969212A3 EP 99110208 A EP99110208 A EP 99110208A EP 99110208 A EP99110208 A EP 99110208A EP 0969212 A3 EP0969212 A3 EP 0969212A3
Authority
EP
European Patent Office
Prior art keywords
connection
check valve
back pressure
pilot
blocking element
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP99110208A
Other languages
English (en)
French (fr)
Other versions
EP0969212A2 (de
Inventor
Herbert Burk
Peter Ebert
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Weber Hydraulik GmbH Germany
Original Assignee
Weber Hydraulik GmbH Germany
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Weber Hydraulik GmbH Germany filed Critical Weber Hydraulik GmbH Germany
Publication of EP0969212A2 publication Critical patent/EP0969212A2/de
Publication of EP0969212A3 publication Critical patent/EP0969212A3/de
Withdrawn legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B13/00—Details of servomotor systems ; Valves for servomotor systems
    • F15B13/01—Locking-valves or other detent i.e. load-holding devices

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Check Valves (AREA)

Abstract

Die vorliegende Erfindung betrifft ein hydraulisch mittels eines Pilotkolbens (40) entsperrbares Rückschlagventil mit einem ersten Anschluß (10), einem auf einem Sitz (20) dichtenden Sperrelement (30) und einem in Sperrichtung dahinter angeordneten zweiten Anschluß (12), wobei der Pilotkolben (40) über einen Pilotdruck-Anschluß (14) bewegbar ist und das Sperrelement (30) von seinem Sitz (20) abhebt, wobei am Pilotkolben (40) ein einen Druckabfall an einer Querschnittsverengung (22) bewirkender, mittels einer Kraft relativ zum Pilotkolben (40) bewegbarer Zwischenkolben (42) vorgesehen ist und wobei die Querschnittsverengung (22) in der Leitung zwischen dem Sperrelement (30) und dem zweiten Anschluß (12) angeordnet ist.
EP99110208A 1998-06-30 1999-05-26 Vorspann-Rückschlagventil Withdrawn EP0969212A3 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19829232 1998-06-30
DE1998129232 DE19829232C1 (de) 1998-06-30 1998-06-30 Vorspann-Rückschlagventil

Publications (2)

Publication Number Publication Date
EP0969212A2 EP0969212A2 (de) 2000-01-05
EP0969212A3 true EP0969212A3 (de) 2000-04-05

Family

ID=7872538

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99110208A Withdrawn EP0969212A3 (de) 1998-06-30 1999-05-26 Vorspann-Rückschlagventil

Country Status (2)

Country Link
EP (1) EP0969212A3 (de)
DE (1) DE19829232C1 (de)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2991759A (en) * 1960-05-17 1961-07-11 John S Pilch Cushioning and flow control valve
US3272086A (en) * 1965-03-02 1966-09-13 Holley Carburetor Co Reversible self-locking hydraulic system
US3857404A (en) * 1973-04-30 1974-12-31 Caterpillar Tractor Co Hydraulically operated lock valve assembly

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2946765C2 (de) * 1979-11-20 1986-04-30 Thyssen Industrie Ag, 4300 Essen Entsperrbares Rückschlagventil
DE3104362A1 (de) * 1981-02-07 1982-08-19 Gewerkschaft Eisenhütte Westfalia, 4670 Lünen Hydraulisch entsperrbares rueckschlagventil fuer hydraulische hochdrucksysteme, insbesondere fuer hydraulische ausbausysteme in bergbau-untertagebetrieben
DE19643041A1 (de) * 1996-10-18 1998-04-23 Fluid Team Automationstechnik Ventilanordnung

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2991759A (en) * 1960-05-17 1961-07-11 John S Pilch Cushioning and flow control valve
US3272086A (en) * 1965-03-02 1966-09-13 Holley Carburetor Co Reversible self-locking hydraulic system
US3857404A (en) * 1973-04-30 1974-12-31 Caterpillar Tractor Co Hydraulically operated lock valve assembly

Also Published As

Publication number Publication date
EP0969212A2 (de) 2000-01-05
DE19829232C1 (de) 2000-05-18

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